1 files changed, 18 insertions, 0 deletions
diff --git a/arch/s390/crypto/arch_random.c b/arch/s390/crypto/arch_random.c
new file mode 100644
index 000000000..1f2d40993
--- /dev/null
+++ b/arch/s390/crypto/arch_random.c
@@ -0,0 +1,18 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * s390 arch random implementation.
+ *
+ * Copyright IBM Corp. 2017, 2020
+ * Author(s): Harald Freudenberger
+ */
+
+#include <linux/kernel.h>
+#include <linux/atomic.h>
+#include <linux/random.h>
+#include <linux/static_key.h>
+#include <asm/cpacf.h>
+
+DEFINE_STATIC_KEY_FALSE(s390_arch_random_available);
+
+atomic64_t s390_arch_random_counter = ATOMIC64_INIT(0);
+EXPORT_SYMBOL(s390_arch_random_counter);